Administration Console Online Help

Log low memory
conditions

You can automatically log low
memory conditions observed by the server. WebLogic Server detects low
memory by sampling the available free memory a set number of times
during a time interval. At the end of each interval, an average of the
free memory is recorded and compared to the average obtained at the next
interval. If the average drops by a user-configured amount after any
sample interval, the server logs a low memory warning message in the log
file and sets the server health state to WARNING.

To log low memory
conditions:

If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit (see Use the Change Center).

In the left pane
of the Console, expand Environment >
Servers.

On the Summary of Servers page, select the
server instance for which you will configure log low memory
conditions.

Select
Configuration > Tuning and update as
needed:

Low Memory GCThreshold - Threshold at
which the server instance logs a low memory warning and changes
the health state to warning.

Low Memory Sample Size - Number of
times the server instance samples free memory during the
Low Memory Time Interval.

Low Memory Time Interval - Amount of
time, in seconds, that defines the interval over which the server
instance determines average free memory values.